
The North Fork Innoko River winds through this interior landscape of the Yukon-Koyukuk Census Area, tracing a complex path of oxbows and river bends. The drainage of Ophir Cr enters from the east, cutting through terrain defined by significant elevation changes that rise away from the river valley. This 2019 survey documents the wild, unpopulated character of the region within the boundaries of t19s r15e and t20s r15e. The absence of roads or permanent structures reflects the remote nature of this portion of the Alaska interior, where the primary geographical features are the waterways and the natural contours of the land.
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This is the sole edition of this map. No revisions or reprints were ever made.
1950 · Medfra
USGS Topo · 1:250,000
1951 · Ophir
USGS Topo · 1:250,000
1954 · Medfra C-6
USGS Topo · 1:63,360
1954 · Medfra D-6
USGS Topo · 1:63,360
1954 · Ophir D-1
USGS Topo · 1:63,360
1954 · Ophir C-1
USGS Topo · 1:63,360
1954 · Ophir
USGS Topo · 1:250,000
1959 · Medfra
USGS Topo · 1:250,000
2019 · Ophir C-1 NE
USGS Topo · 1:25,000
2019 · Ophir D-1 NE
USGS Topo · 1:25,000